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Feasibility Study of an Experiment to Measure the Vacuum Magnetic Birefringence

机译:测量真空磁双折射实验的可行性研究

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摘要

The use of a recently decommissioned 15-meters long twin aperture LHC superconducting magnet prototype having a transverse magnetic field B ~ 9.5 T provides the unique opportunity for the construction of a new powerful experiment to measure the Vacuum Magnetic Birefringence (VMB). The values or the limit values of the mass and of the coupling constant to two photons of possible dark matter candidates such as axions are aimed to be deduced from such an experiment. In this article, the technical feasibility study of a new setup to measure the VMB will be presented. It is based on a linear optical resonant cavity housed in the LHC superconducting dipole prototype. The mechanical integrations of the optical components inside the magnet aperture as well as the optical detection principles will be presented. A comparison of the expected performances with respect to the present reference results for this type of experiment will also be given.
机译:使用最近退役的,具有横向磁场B〜9.5 T的15米长双孔LHC超导磁体原型,为构造一个新的强大实验来测量真空磁双折射(VMB)提供了独特的机会。旨在从这样的实验中推导出与可能的暗物质候选物(例如轴)的两个光子的质量和耦合常数的值或极限值。在本文中,将介绍一种用于测量VMB的新设置的技术可行性研究。它基于容纳在LHC超导偶极子原型中的线性光学谐振腔。将介绍磁体孔内光学组件的机械集成以及光学检测原理。还将针对此类实验将预期性能与当前参考结果进行比较。

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